The most commonly known and used statistical mean is the arithmetic mean, calculated by adding all values and dividing the result by the number of values. The arithmetic mean is one of a "family" of three means called the Pythagorean means, the other two being the geometric mean and the harmonic mean. In this post I will explain when you might need to use these alternatives and then show how to calculate them using Python.
In this article I will demonstrate how to draw an arc, or section of the circumference of a circle, with SVG, and then go on to draw a "pie slice" or circular sector to give it its correct name. Finally I'll draw a number of circular sectors to create a pie chart.
Many of my articles include mathematical formulas with specialist characters and formatting, and as they are usually well known formulas I can usually "borrow" them from places such as Wikipedia by taking screenshots. If you cannot do this for some reason then in this article I'll look at alternatives using TeX and MathJax.
The math.js library's many features include comprehensive support for units, enabling us to carry out calculations and conversions of measurements including length, mass, volume and many more.
The library has its own comprehensive documentation so in this article I will just give a brief introduction the unit functionality before providing a few examples of more obscure or specialized usage.